package class2334;


public class example18 {
    public static void main(String[] args){
        int[] arr=new int[3];
        System.out.println("arr[0]" + arr[0]);
        System.out.println("arr[1]" + arr[1]);
        System.out.println("arr[2]" + arr[2]);
        System.out.println("数组的长度是"+arr.length) ;
    }
}